@A2: LISA is not as stable as she looks. The big members might make someone think that she is very rigid but with the screw flex and the torsional twisting of the members it is just good enough for 3D printing. (3D printing let's you get away with a lot thanks to the low forces.) The second problem is LISA needs the concentric hub. (This makes it hard to mount a router.) If I was to build a delta style milling machine it would probably look like a Rostock. Instead of 6 rods, I would do 3 screws and 3 rods. I would probably stick with 6 arms like a Rostock. I would use 608's in the ujoints.
↧